Automating vCloud Director Resiliency whitepaper released

About a year ago I wrote a whitepaper about vCloud Director resiliency, or better said I developed a disaster recovery solution for vCloud Director. This solution allows you to fail-over vCloud Director workloads between sites in the case of a failure. Immediately after it was published various projects started to implement this solution. As part of our internal project our PowerCLI guru’s Aidan Dalgleish and Alan Renouf started looking in to automating the solution. Those who read the initial case study probably have seen the manual steps required for a fail-over, those who haven’t read this white paper first

The manual steps in the vCloud Director Resiliency whitepaper is exactly what Alan and Aidan addressed. So if you are interested in implementing this solution then it is useful to read this paper new white paper about Automating vCloud Director Resiliency as well. Nice work Alan and Aidan!

Automating ESXi host level changes without opening SSH

I have been asked by many if it is possible automating ESXi host level changes without opening SSH. In many organizations people are prohibited to open SSH however they do have the need to make certain changes on a host level. One of those changes for instance is in a stretched cluster environment where “disk.terminateVMOnPDLDefault” needs to be set to true. This setting can only be configured in /etc/vmware/settings unfortunately. So how do you automate this?

Andreas Peetz from came up with an awesome solution. He created a plugin to esxcli allowing you to run commands on an ESXi host. So in other words, when you install his plugin (it is a vib) you can remotely fire off a command on an ESXi host as if you are sitting behind that host.

How does that work? Well first of all you install the vib Andreas created. (Or include it in your image.) When it is installed you can simply run the following on any machine that has the vSphere CLI installed:

esxcli -s hostname -u username -p password shell cmd -c "command"

Awesome right?! I think so, this is probably one of the coolest things I have seen in a while. Very clever solution, once again… awesome work Andreas and head over to to get more details and the actually download of this plugin!

** Disclaimer: implementing this solution could result in an unsupported configuration. This article was published to demonstrate the capabilities of esxcli and for educational purposes **

vCloud Suite 5.1 available

No I didn’t set my alarm clock like Eric Sloof, just to be one of the first to post it… hence the reason this is “late”. But I got some more lined up for you though in the upcoming days. Now that the vCloud Suite 5.1 is available. Make sure to start your download engines and prep to upgrade. Before you start downloading, make sure to hit the launch page. I created a nice short URL for it

VMware NOW – Get the Latest Info on VMware Product Launches:

Download links:

What’s new docs:


Memory Speeds?

I was just checking out some of the VMworld Sessions and one that I really enjoyed was the one on “Memory Virtualization” session by Kit Colbert and YP Chien (#VSP2447). This session has a lot of nuggets but something I wanted to share is this script that YP Chien / Kingston showed up on stage. This script basically shows you at what speed your memory is capable of runing at. I asked Alan Renouf if he could test it as my lab is undergoing heavy construction. He tested it and mailed me back the output of the following script:

$cred = Get-Credential
$sessOpt = New-WSManSessionOption -SkipCACheck -SkipCNCheck -SkipRevocationCheck
$rsrcURI = ""
foreach ($h in (Get-VMHost)) {
Write-Output $h.Name
Get-WSManInstance -ConnectionURI ("https`://" + $h.Name + "/wsman") -Authentication basic -Credential $cred -Enumerate -Port 443 -UseSSL -SessionOption $sessOpt -ResourceURI $rsrcURI | Select ElementName, @{N="Capacity (GB)";E={$_.Capacity / 1073741824.}}, MaxMemorySpeed

The output will look like this:

ElementName    : DIMM1
Capacity (GB)  : 2
MaxMemorySpeed : 800

ElementName    : DIMM1
Capacity (GB)  : 2
MaxMemorySpeed : 800

For those wondering what more you can get from CIM I would suggest reading this great article on the VMware PowerCLI blog.